Proper posture prevents back and arm strain. Posture refers to how your body is aligned at the piano keyboard. Sit on the front half of the piano bench with your knees just beneath the keyboard. Your feet should be flat on the floor or on a box. Your back and neck should be straight. The bench should be far enough away from the keyboard that you can touch your elbows together in front of you.
Hand and Arm Position
A piano bench with the proper height allows your arms to hang freely from your shoulders. It also promotes parallel positioning of the forearms and hands to the keyboard and floor while playing. The hands should curve naturally over the keyboard, and the wrist should be loose without bending inward. Raised shoulders or elbows may indicate that the piano bench is too low and can cause tension in these joints.
Piano Bench Adjustment
An ergonomic piano bench can be adjusted to accommodate different players or a growing child. The padded part of the seat is raised or lowered by a hand wheel on either side of the bench. While these benches can be comfortable and solve posture and hand position problems, their can cost can range from $200 to over $1,000 as of 2011. Inexpensive alternatives include using a pillow on the bench or a platform under the bench to raise the player.
Tendon damage caused by poor posture and hand position can be quite difficult to heal and may necessitate time away from the piano and other keyboard activities such as using a computer. An adjustable piano bench may prevent such injuries. Piano bench height, body posture and hand and arm position should be monitored on a regular basis to ensure that the piano player remains free from pain.